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<br /> <br />CHARLES W. PLOWE (J 1-/7-9~) RO;;ETOWN 'RIDGE <br />CONSULTING ENGINEER ~N1> <br />9180 Lexington Ave. N.E. <br />Circle Pines, MN 55014 . (Ph: 785-1(43) POND SIZING - WORKSHEET <br /> 15 mi"n 30 m;n 60 m;n 2 hr 12 hr 24 hr <br /> - <br />Storm Duration <br />Precipitation. P ( ft) <br />100 year 0.15 0.19 0.25 0.29 0.43 0.49 <br />Precipitation. p (ft) <br />. year <br />Intensity (if1/hr) <br />looyear 7.0 5.0 3.0 <br />year <br />, <br /> <br />( R:: cPA = O.ST X o. ''>- X s-: 3,4, < D. 4-+ A.o-Fr <br /> <br /> <br />0.4-4- 0>5 0.77 034 1,.2.5" 14.3 <br />....::.-- - <br /> <br />100 Year Storm <br /> <br />Volume of Runoff <br />CPA (acre-ft) <br /> <br />.- <br /> <br />. Q .s e J JII1 : "l. ---------... ., ~ A At, <br />~.gXI>jIf;Wf x~vofume of Oischarge*::, (),~ {/.f' <br />W-(,o (acre-ft) a?CW'{t ~ q;!2 ~ ~ <br /> <br />O,S'O .% <br />O.3f'/ O.4-3/c@J ~ <br /> <br />( i?7 cf Sr..-rq,~e <br /> <br />:l -::/; <br /> <br />Required Storage <br />Vol ume (acre-ft) <br /> <br />Year Storm <br /> <br />Volume of Runoff <br />CPA (acre-ft) <br /> <br />- <br /> <br />Volume of Discharge* <br />Qt (acre-ft) <br /> <br />- <br /> <br />.- <br /> <br />Required Storage <br />Volume (acre-ft) <br /> <br />*Assume one-half of the undeveloped rate of runoff for.full duration <br />of storm. <br />IS-lit)!!}. ()vrLer @ 4=-/.r/ <br />c:f! = s:, c.r;:-s ~ ( ;: ,) - <br />""I; J{ "' <br /> <br /> <br />- <br /> <br />